| Carroll - Peters Unit G-3-162306 | Magnolia Oil & Gas Operating LLC only | Kurten (Georgetown) | Brazos | 1 | 43K | 802K | Jan 1997 – Apr 2026 |
| Woodyard-Cargill Unit O-3-22284 | Union Pacific Resources Company only | Giddings (Austin Chalk-3) | Brazos | 1 | 43K | 104K | Oct 1993 – Dec 1995 |
| Carroll-Biering Unit G-3-160785 | Magnolia Oil & Gas Operating LLC only | Kurten (Georgetown) | Brazos | 1 | 42.7K | 1.37M | Oct 1996 – Apr 2026 |
| Cash, Leon F. O-3-19322 | Apache Corporation only | Stone City (Austin Chalk) | Brazos | 1 | 42.7K | 98K | Jan 1993 – Feb 2008 |
| Brown, R. O-3-21396 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 42.5K | 38.6K | Jan 1993 – Feb 2025 |
| Jones-Jones Unit O-3-21524 | Union Pacific Resources Company only | Giddings (Austin Chalk-3) | Brazos | 1 | 42.4K | 259K | Jan 1993 – Feb 1998 |
| Cheryl O-3-16811 | Buffco Production Inc. only | Kurten (Buda) | Brazos | 2 | 42.3K | 191K | Jan 1993 – Apr 2026 |
| Opersteny Unit O-3-13604 | Leexus Oil LLC only | Kurten (Woodbine) | Brazos | 1 | 42.3K | 15.4K | Jan 1993 – Apr 2026 |
| Erik O-3-25633 | Wildfire Energy Operating LLC only | Giddings (Buda) | Brazos | 1 | 42.2K | 907K | Jun 2010 – Apr 2022 |
| Myers Cattle Unit G-3-156375 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 42.1K | 2.79M | Sep 1995 – Apr 2026 |
| Peters O-3-21525 | McDaniel Company, Inc., The only | Giddings (Austin Chalk-3) | Brazos | 2 | 41.7K | 238K | Jan 1993 – Nov 1999 |
| Connor-Wheeler O-3-24174 | Wildfire Energy Operating LLC only | Giddings (Buda) | Brazos | 1 | 41.4K | 376K | Jul 2001 – May 2023 |
| Weedon-Weedon "B" Unit O-3-21918 | Union Pacific Resources Company only | Giddings (Austin Chalk-3) | Brazos | 1 | 40.2K | 160K | Jan 1993 – Dec 1996 |
| Jones-Cobb O-3-26080 | Centex Energy, LLC only | Giddings (Buda) | Brazos | 1 | 40K | 162K | Jul 2011 – May 2018 |
| Waldorf-Pool G-3-143409 | Magnolia Oil & Gas Operating LLC only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 40K | 1.09M | Jan 1993 – Jan 2010 |
| Gerke O-3-14773 | Holley Oil Company, LLC only | Kurten (Buda) | Brazos | 1 | 39.7K | 93.7K | Jan 1993 – Sep 2018 |
| Wise Unit O-3-22281 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk-3) | Brazos | 1 | 39.7K | 27.5K | Jun 1993 – Feb 1998 |
| Beryl O-3-25976 | Wildfire Energy Operating LLC only | Giddings (Buda) | Brazos | 1 | 39.5K | 15.7K | Aug 2011 – Oct 2021 |
| McFarlane, J. W. G-3-145663 | Magnolia Oil & Gas Operating LLC only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 39.4K | 849K | Apr 1993 – Apr 2013 |
| Philipello O-3-19328 | Cumming Company, Inc. The only | Kurten (Buda) | Brazos | 1 | 39.1K | 13 | Jan 1993 – Mar 2026 |
| Gary Bryant O-3-26242 | Yeti Exploration, LLC only | Giddings (Buda) | Brazos | 1 | 38.9K | 75.2K | Feb 2013 – Mar 2026 |
| Deerfield Unit O-3-21368 | Sage Energy Company only | Giddings (Austin Chalk-3) | Brazos | 2 | 38.9K | 288K | Jan 1993 – Sep 1996 |
| Startown Unit O-3-21531 | 7711 Corporation, The only | Giddings (Austin Chalk-3) | Brazos | 1 | 38.5K | 72.8K | Jan 1993 – Apr 2008 |
| Enterprise Unit G-3-162239 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 38.5K | 1.6M | Feb 1997 – Apr 2026 |
| Berger-Porterfield Unit O-3-21523 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 38.5K | 382K | Jan 1993 – Jan 2000 |
| Laine O-3-18530 | Ginger Petroleum Company, Inc. only | Kurten (Buda) | Brazos | 1 | 38.4K | 49.3K | Mar 1993 – Oct 2009 |
| Burkhart Ranch, A.S. #4 O-3-19962 | Cameron, Paul E., Jr., Inc. only | Kurten (Buda) | Brazos | 1 | 38.3K | 34.7K | Jan 1993 – Apr 1999 |
| Hullabaloo G-3-190267 | Magnolia Oil & Gas Operating LLC only | Giddings (Buda) | Brazos | 1 | 38K | 935K | Aug 2001 – Apr 2026 |
| Payne, Albert M. O-3-25572 | Wildfire Energy Operating LLC only | Madisonville, W. (Woodbine -A-) | Brazos | 1 | 37.8K | 18K | Feb 2010 – May 2025 |
| McFarlane, J. W. G-3-141646 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 37.7K | 920K | Jan 1993 – Nov 2003 |
| Zemanek-Wolf Unit O-3-21635 | Apache Corporation only | Giddings (Austin Chalk-3) | Brazos | 1 | 37.5K | 127K | Jan 1993 – Dec 2007 |
| Patranella-Wilson Unit O-3-24207 | Anadarko E&P Company LP only | Giddings (Buda) | Brazos | 1 | 37.4K | 43.4K | Dec 2001 – Aug 2002 |
| Raceway O-3-23445 | Enervest Operating, L.L.C. only | Giddings (Austin Chalk-3) | Brazos | 1 | 37.1K | 280K | Nov 1997 – Mar 2012 |
| Magnolia O-3-25833 | South Texas Operating Company only | Giddings (Austin Chalk-3) | Brazos | 1 | 37.1K | 13.2K | Dec 2011 – Feb 2026 |
| Weedon-Reed Unit O-3-21383 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 37K | 333K | Jan 1993 – Jun 2001 |
| Lang, James "A" O-3-11646 | Vess Oil Corporation only | Kurten (Woodbine) | Brazos | 1 | 36.9K | 2.97K | Jan 1993 – Apr 2026 |
| Patterson - Clark Unit O-3-22692 | Rme Petroleum Company only | Giddings (Austin Chalk-3) | Brazos | 1 | 36.8K | 528K | Mar 1995 – Feb 2001 |
| Armstrong Unit O-3-21346 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk-3) | Brazos | 1 | 36.7K | 235K | Jan 1993 – Jan 2001 |
| Thumper O-3-25026 | Wildfire Energy Operating LLC only | Giddings (Buda) | Brazos | 1 | 36.7K | 2.27K | Aug 2007 – Mar 2026 |
| Cannon-Chance Unit G-3-187097 | Magnolia Oil & Gas Operating LLC only | Giddings (Buda) | Brazos | 1 | 36.6K | 1.52M | Mar 2001 – Apr 2026 |
| Robinson-Poteet O-3-26238 | Wildfire Energy Operating LLC only | Madisonville, W. (Woodbine -A-) | Brazos | 1 | 36.3K | 18.4K | May 2013 – Mar 2026 |
| Kim O-3-24385 | B.W.O.C., Inc. only | Giddings (Buda) | Brazos | 1 | 36.2K | 38.9K | Jun 2003 – Dec 2004 |
| Wehmeyer, A. P. O-3-18080 | Sacono Oil & Gas, L.L.C. only | Kurten (Buda) | Brazos | 1 | 36.1K | 55.3K | Jan 1993 – Jun 2019 |
| Brannon O-3-22698 | Brammer Petroleum, Inc. only | Giddings (Austin Chalk-3) | Brazos | 1 | 35.9K | 132K | Jan 1995 – Mar 2002 |
| McGruder-Anderson Unit O-3-21933 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk-3) | Brazos | 2 | 35.9K | 288K | Mar 1993 – Mar 2012 |
| BDM O-3-25801 | South Texas Operating Company only | Giddings (Austin Chalk-3) | Brazos | 1 | 35.8K | 0 | Jan 2011 – Dec 2025 |
| Court, V. O-3-18606 | Home Petroleum Corp. only | Kurten (Buda) | Brazos | 1 | 35.8K | 40.2K | Jan 1993 – Feb 2026 |
| David O-3-24950 | 7711 Corporation, The only | Caldwell, NE (Georgetown) | Brazos | 1 | 35.5K | 157K | Nov 2006 – Jul 2007 |
| J. Anthony Unit O-3-25305 | Wildfire Energy Operating LLC only | Giddings (Buda) | Brazos | 1 | 35.4K | 53.2K | Aug 2008 – Dec 2021 |
| T.J.M. OL G-3-156533 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 35.4K | 3.83M | Aug 1995 – Apr 2026 |